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200 most recent check-ins using file test/securedel.test version 87a25611

2017-07-21
03:09
Add new interfaces sqlite3_result_pointer(), and sqlite3_value_pointer() and use them to transfer the eponymous FTS3 column pointer to the snippet() and offsets() routines. This changes is inspired by check-in [72de49f2] but is new implementation, not a cherry-pick. (Leaf check-in: f0f49224 user: drh tags: branch-3.7.11)
2015-08-13
21:43
Convert the hint expression of the CursorHint opcode into a string for display by EXPLAIN. (Leaf check-in: 12640cb2 user: drh tags: cursor-hints-displayP4)
2015-05-21
02:24
Silently ignore any attempt to add a prefix index for prefixes zero bytes in size to an fts3/4 table. Or any prefix index size so large that it overflows a 32-bit signed integer. Cherrypick [ad4b19d2ac0889a] (check-in: 000197cc user: drh tags: branch-3.7.11)
02:20
Ensure that tables names are dequoted exactly once by the trigger logic. Cherrypick [59e92bd9521f1e8] and [9d887b92f8086961e]. (check-in: 9e3f64a4 user: drh tags: branch-3.7.11)
02:07
When parsing the schema, ignore any SQL that does not begin with "CREATE". Cherrypick of [d3c00d61581c] with additional changes. (check-in: 09784f37 user: drh tags: branch-3.7.11)
01:04
Do not allow virtual table constructors to be called recursively. Cherrypick [0a72726da21581ab] (check-in: 0f0694e4 user: drh tags: branch-3.7.11)
00:50
Add the ".open" command to the command-line shell. Cherrypick from [21eccb919441]. (check-in: a71e2a72 user: drh tags: branch-3.7.11)
2014-10-02
09:27
Fix a segfault that could occur if an 'optimize' command was issued on an FTS table that contained at least one row but zero terms. (Leaf check-in: b21746ac user: dan tags: branch-3.7.14)
2014-07-15
11:59
Add simple tests for new sqlite3BtreeCursorHint() functionality. (check-in: 1efa6ed5 user: dan tags: cursor-hints)
2014-07-14
19:04
In the expression passed to sqlite3BtreeCursorHint() for the inner loops of joins, replace any TK_COLUMN references to columns in the outer loops with TK_REGISTER expressions (Expr.iTable indicates the specific register containing the value). There are no automated tests for this yet. (check-in: f9dddd00 user: dan tags: cursor-hints)
2014-06-17
18:43
Experimental changes to use GetFileInformationByHandle instead of GetFileSize in the Win32 VFS. (Closed-Leaf check-in: d22c8142 user: mistachkin tags: filesize-debug)
2014-04-24
13:20
Add sqlite3_log() diagnostic messages for a specific type of corruption where the file size is reported to be too small relative to the size in the header. This branch is intended to help debug a specific problem reported from the wild and is not for general use. (check-in: 34155c40 user: drh tags: filesize-debug)
2014-01-28
00:49
Provide hints to the btree layer Next and Previous primitives to let them know if they can be no-ops if the underlying index is unique. (Leaf check-in: a2c347fa user: drh tags: branch-3.8.2)
2014-01-15
00:24
Merge recent fixes from trunk. Cherrypick of [c43b59dac1], [a221aa82bb], [e1eba1fb09], and [1e131094b5]. (check-in: c697d2f8 user: mistachkin tags: branch-3.8.2)
2013-12-23
15:35
Make sure the WhereLoop.aLTerm[] array is large enough when processing the skip-scan optimization. Fix for ticket [520070ec7fbaac]. (check-in: ac5852d6 user: drh tags: branch-3.8.2)
2013-12-19
14:34
Remove an unneeded column-cache flush in aggregate SELECT and an unreachable branch in the INSERT logic. (check-in: ffa092e1 user: drh tags: trunk)
02:56
Omit an unnecessary OP_Null opcode from UPDATE. (check-in: 72d11133 user: drh tags: trunk)
02:23
Omit one or more pointless instructions that occur in between OP_NoConflict and OP_Halt. (check-in: 61e2f357 user: drh tags: trunk)
2013-12-18
18:44
Remove an unnecessary column-cache flush operation. Add code to trace the column cache when compiled with SQLITE_DEBUG and using PRAGMA vdbe_addoptrace=ON. (check-in: 58704ed1 user: drh tags: trunk)
16:27
Remove an unnecessary column-cache flush. Add another test case to the speedtest1.c program to accentuate the benefit of not flushing the cache at that point. (Closed-Leaf check-in: 97fdfc6b user: drh tags: column-cache-debug)
15:11
Show changes to the column cache when PRAGMA vdbe_addoptrace=ON is set. (check-in: 4c6a659c user: drh tags: column-cache-debug)
2013-12-17
16:32
Add evidence marks and additional test cases for the printf() SQL function. (check-in: 93121d30 user: drh tags: trunk)
16:10
Add the printf() SQL function. (check-in: a1bb62f9 user: drh tags: trunk)
15:58
Fix the formatting of %c in the printf() SQL function. (Closed-Leaf check-in: 3375571a user: drh tags: printf-sql-function)
15:03
Add the printf() SQL function. (check-in: 6db7052e user: drh tags: printf-sql-function)
2013-12-14
18:24
Merge in all recent preformance enhancements from trunk. (check-in: 32477642 user: drh tags: sessions)
13:44
Allow the SQLITE_DETERMINISTIC flag to be ORed into the preferred text encoding of application-defined functions, to mark the function as deterministic. (check-in: 5716fc23 user: drh tags: trunk)
2013-12-13
20:45
Performance optimizations in the pager_write() routine of pager.c. (check-in: bc5febef user: drh tags: trunk)
19:48
Reduce the number of calls to the subjRequiresPage() routine inside of pager. (check-in: e50ff39a user: drh tags: trunk)
19:35
Create and use a new pager interface sqlite3PagerUnrefNotNull() that works just like sqlite3PagerUnref() but guarantees that its argument is not a NULL pointer. (check-in: e00f37e2 user: drh tags: trunk)
18:50
Enhance the pcache1PinPage() routine so that it called much less often and runs much faster in the cases when it is actually called. (check-in: a845779c user: drh tags: trunk)
16:42
Avoid unnecessary calls to sqlite3_free() from within sqlite3VXPrintf(). (check-in: e2a8b280 user: drh tags: trunk)
16:23
Simplication and optimization of error message handling. (check-in: 9d347f54 user: drh tags: trunk)
2013-12-11
15:47
Add the SQLITE_FCNTL_SYNC and SQLITE_FCNTL_COMMIT_PHASETWO file-controls and have the pager call them at appropriate times. This is needed in order to enable ZIPVFS to do multi-file atomic commits. (check-in: 552f94d5 user: drh tags: trunk)
14:17
Merge in the latest trunk changes. (Closed-Leaf check-in: 9ff4dfe1 user: drh tags: zipvfs-multifile-commit)
14:00
Fix a bug in the shell ".import" command: Do not end the field when an escaped double-quote occurs at the end of a CRNL line. (check-in: 5e239ecd user: drh tags: trunk)
12:02
Remove an unreachable conditional inserted by the previous check-in. (check-in: 3e1d55f0 user: drh tags: trunk)
11:03
Have the crash-test infrastructure code in test6.c read and write the 512-byte block containing the pending-byte lock as normal. Earlier versions did not access this part of the file in order to avoid triggering an assert in os_unix.c. But the assert() has since been removed. And not reading/writing this part of the file causes problems for multiplexor tests. (check-in: fdc3f3fa user: dan tags: zipvfs-multifile-commit)
11:00
Fix harmless compiler warnings. (check-in: a7e5fcd6 user: drh tags: trunk)
02:21
Fix harmless compiler warning. (check-in: 2525296d user: mistachkin tags: trunk)
00:59
Do not run the tool/vdbe-compress.tcl script that generates the vdbeExecUnion object that reduces the size of the sqlite3VdbeExec() stack frame unless the SQLITE_SMALL_STACK compile-time option is specified as on of the OPTS in the makefile. The vdbeExecUnion object gets in the way of C-compiler optimizer and results in slightly slower code. (check-in: 4d078147 user: drh tags: trunk)
2013-12-10
21:38
Avoid unnecessary calls to sqlite3VdbeSerialType() from within sqlite3VdbeSerialPut(). (check-in: 079c04a5 user: drh tags: trunk)
20:53
In the OP_MakeRecord opcode, factor out affinity changes into separate loop, for a slight performance advantage. (check-in: 1c6ee9b8 user: drh tags: trunk)
19:49
Simplify and improve the performance of the sqlite3VdbeMemGrow() routine. (check-in: 48ecf187 user: drh tags: trunk)
17:34
Use SQLITE_FCNTL_SYNC instead of SQLITE_FCNTL_SYNC_OMITTED. Add documentation in for FCNTL_SYNC and FCNTL_COMMIT_PHASETWO. (check-in: 46231af9 user: dan tags: zipvfs-multifile-commit)
16:35
Merge changes from the trunk. (check-in: 3ee736a3 user: dan tags: zipvfs-multifile-commit)
16:27
Fix handling of errors returned by the SQLITE_FCNTL_OMIT_SYNCED file-control. (check-in: d9a5f44f user: dan tags: zipvfs-multifile-commit)
2013-12-09
23:17
Simplifications to the OP_MakeRecord opcode and the sqlite3VdbeSerialPut() helper function. (check-in: 7277a769 user: drh tags: trunk)
21:48
Correct the VFS name as reported by the file control when explicitly using the 'win32-longpath' VFS. (check-in: c43b59da user: mistachkin tags: trunk)
21:06
Reduce the number of times that OP_Column calls sqlite3VdbeMemMakeWriteable(). (check-in: 6b518635 user: drh tags: trunk)
20:43
Simplify the sqlite3BtreeKeyFetch() and sqlite3BtreeDataFetch() interfaces to the storage engine. (check-in: bf975985 user: drh tags: trunk)
20:42
Modify the way some internal file-controls are invoked. In order to support multi-file transactions in the zipvfs extension. (check-in: 32fb1784 user: dan tags: zipvfs-multifile-commit)
19:25
Minor performance optimizations in pager.c. (check-in: ba9eef5f user: drh tags: trunk)
19:03
Performance optimizations for sqlite3VXPrintf(). (check-in: 9227ad48 user: drh tags: trunk)
12:24
Fix an incorrect test number in the output of the speedtest1.c program. No changes to the test algorithms. (check-in: fbfc075a user: drh tags: trunk)
03:07
Avoid unnecessary (no-op) calls to sqlite3DbFree() from sqlite3VdbeMemRelease(). (check-in: 2d6dd7c2 user: drh tags: trunk)
02:32
Use memmove() rather than a home-made copy loop in insertCell() too. (check-in: a3d796b1 user: drh tags: trunk)
01:58
Use memmove() rather than a home-made copy loop in dropCell() of btree.c, for a size reduction and performance improvement. (check-in: 78e17068 user: drh tags: trunk)
01:04
Avoid unnecessary no-op calls from getAndInitPage() to btreeInitPage() in the btree.c logic. (check-in: 81f5ae13 user: drh tags: trunk)
00:47
Use putVarint32() instead of putVarint() for a quantity that can never exceed 2GiB - 1. (check-in: 6996fb34 user: drh tags: trunk)
2013-12-08
23:33
Another simplification to the OP_MakeRecord opcode, making it slightly faster and very slightly smaller. (check-in: f2f5a3ce user: drh tags: trunk)
22:59
Avoid unnecessary calls to sqlite3VarintLen() from the OP_MakeRecord opcode. (check-in: 7a234fc3 user: drh tags: trunk)
19:54
Interchange two conditions in an "if" statment in sqlite3PagerAcquire() for very slight (0.06%) overall performance increase. (check-in: fbcc1a3e user: drh tags: trunk)
2013-12-07
23:35
Do not allow cursor hints to use expressions containing subqueries. This change fixes the problem seen in the previous check-in. (check-in: bfefc575 user: drh tags: cursor-hints)
20:39
If the SQLITE_ENABLE_CURSOR_HINTS macro is defined, then invoke the sqlite3BtreeCursorHint() interface to provide hints to the storage engine about rows that need not be returned. Hints can be disabled using SQLITE_TESTCTRL_OPTIMIZATIONS with SQLITE_CursorHints (0x2000). Cursor hints are not used by the built-in storage engine of SQLite but might be useful to applications that provide their own storage engine. The current code is work-in-progrss and contains bugs. (check-in: 3a9bec52 user: drh tags: cursor-hints)
17:01
Increase the version number to 3.8.3. (check-in: 23d00f22 user: drh tags: trunk)
16:56
At the start of each journaled write transaction, check to see if the database file has been moved, and if it has refuse to start the transaction, returning an SQLITE_READONLY_DBMOVED error code. Writing to a moved or renamed database is still allowed when journal_mode is OFF or MEMORY. (check-in: 369a23e0 user: drh tags: trunk)
16:45
Back out the new device capability. The determination of whether or not a file has moved is now done strictly using a file-control. (Closed-Leaf check-in: 9c59f5af user: drh tags: detect-moved-db)
12:29
Actually look at i-node numbers to determine whether or not the database file has moved. (check-in: 2b1884dc user: drh tags: detect-moved-db)
2013-12-06
23:25
Performance optimization to the moveToRoot() subroutine in btree.c. (check-in: b5842a70 user: drh tags: trunk)
22:45
Use memcmp() instead of the BINARY collating function where possible, for a performance boost. (check-in: c5a3a1af user: drh tags: trunk)
22:44
Remove some commented-out code from sqlite3BtreeMovetoUnpacked() to try to make it more readable. (check-in: 2d62d113 user: drh tags: trunk)
19:58
Add the SQLITE_READONLY_DBMOVED error code to the sqlite3ErrName() function. (check-in: 7789f801 user: mistachkin tags: detect-moved-db)
17:23
Only error out on a database file move when attempting to start a write transaction. Assume read transactions are still safe. And make the error SQLITE_READONLY_DBMOVED instead of SQLITE_IOERR_NODB. (check-in: 28348f2a user: drh tags: detect-moved-db)
15:49
Update to the 3.8.2 release. (check-in: e579661a user: drh tags: sessions)
15:37
Add code to detect if the database file is moved or deleted out from under SQLite and return an SQLITE_IOERR_NODB. (check-in: 8759a8e4 user: drh tags: detect-moved-db)
14:53
Version 3.8.2 (check-in: 27392118 user: dan tags: trunk, release, version-3.8.2)
2013-12-05
17:12
Fix harmless compiler warnings and improve the MSVC makefile. (check-in: c6325670 user: drh tags: trunk)
16:41
Fix two potential (and apparently harmless) shift overflows discovered by the -fcatch-undefined-behavior option of clang. (check-in: e19eead8 user: drh tags: trunk)
2013-12-03
23:33
Make use of the CC nmake macro even when cross-compiling (with MSVC). (Closed-Leaf check-in: aae7b30e user: mistachkin tags: memTests)
22:33
Fix harmless compiler warnings. (check-in: a12d214e user: mistachkin tags: memTests)
22:32
Add memory subsystem related defines to the compile-time options list. (check-in: 52a44146 user: mistachkin tags: memTests)
20:51
Merge in trunk changes. (check-in: a2914d6b user: drh tags: sessions)
19:49
Remove a branch in STAT4 logic that is no longer reachable after the previous change. (check-in: eca7d3f1 user: drh tags: trunk)
19:16
Fix a possible (and probably harmless) uninitialized variable in STAT3/4. (check-in: 33ad4f91 user: drh tags: trunk)
18:26
Fix an alignment problem in the stat3/stat4 code affecting 32-bit platforms. (check-in: 14f9bc79 user: dan tags: trunk)
17:09
Fix a typo in fts3varint.test preventing the valgrind permutation test from running. (check-in: b654a4ec user: dan tags: trunk)
10:35
Modify test file conflict2.test so that it works with the "inmemory_journal" permutation. (check-in: e4164fd8 user: dan tags: trunk)
10:14
Remove an unnecessary branch from the UPDATE logic - one that was also unreachable except following an OOM on x64. (check-in: 72f97277 user: drh tags: trunk)
09:49
Add a "database_may_be_corrupt" directive to test file fuzz3.test. Reformat an assert() statement in vdbeaux.c to make its intent clearer. (check-in: 9d8a0e13 user: dan tags: trunk)
02:52
Change some unreachable test conditions to NEVER(). (check-in: 7d99858b user: drh tags: trunk)
00:11
Fix a harmless compiler warning on MacOS. (check-in: 74328de1 user: drh tags: trunk)
2013-12-02
21:58
Merge all recent 3.8.2 beta changes from trunk. (check-in: 67c34ccf user: drh tags: sessions)
21:25
Another #if SQLITE_VERSION_NUMBER macro in speedtest1.c for compatibility with older versions of SQLite. (check-in: bc8eacc7 user: drh tags: trunk)
01:24
Still more #if SQLITE_VERSION_NUMBER macros in test/speedtest1.c to enable compilation against older versions of SQLite. (check-in: 4b20cf42 user: drh tags: trunk)
2013-12-01
18:10
Add some #if SQLITE_VERSION_NUMBER macros to test/speedtest1.c in order to make it compatible with older versions of SQLite so that it can be used for historical speed comparisons. (check-in: a9e1627a user: drh tags: trunk)
01:18
Fix typos in the header comment on the sqlite3Atoi64() routine. (check-in: c85e0c54 user: drh tags: trunk)
2013-11-30
12:49
Detect a corrupt UnpackedRecord and return SQLITE_CORRUPT prior to calling sqlite3BtreeMovetoUnpacked(). (check-in: 55ec474d user: drh tags: trunk)
2013-11-29
15:39
Change the name of the CORRUPTIBLE macro to CORRUPT_DB. (check-in: f865be10 user: drh tags: trunk)
15:06
Add a new sqlite3_test_control() that indicates that database files are always well-formed. Use this during testing to enable assert() statements that prove conditions that are always true for well-formed databases. (check-in: 15e4f63d user: drh tags: trunk)
2013-11-28
19:28
Update a few test cases to account for the new error message formats. (check-in: 65a5bce3 user: dan tags: trunk)
14:14
Remove an assert() condition that may not be true if the database file is corrupt. Update a test case in corruptC.test. (check-in: 0bcf7551 user: dan tags: trunk)
06:17
Fix a test case in temptrigger.test so that it works in auto-vacuum mode. (check-in: c3b7a0e6 user: dan tags: trunk)
2013-11-27
21:53
Merge all recent trunk changes. (check-in: 3a2a1bd4 user: drh tags: sessions)
21:07
Remove unnecessary local variables from sqlite3VdbeExec() in order to reduce stack-space requirements of that routine. (check-in: 81891288 user: drh tags: trunk)
19:17
Update documentation of sqlite3_column() for clarity. Update evidence marks on test cases. (check-in: ec2d47a1 user: drh tags: trunk)
18:00
Fix spelling typo in speedtest1.exe. (check-in: ae90300e user: mistachkin tags: trunk)
14:50
Fix some harmless compiler warnings in speedtest1.exe. (check-in: c75f561f user: drh tags: trunk)
13:48
Additional test cases for skip-scan. (check-in: ce70803f user: drh tags: trunk)
13:24
Make sure the colWidth array is correctly initialized in the ".explain" command of the shell. (check-in: ceebcdca user: drh tags: trunk)
04:22
Lower the threshold for using skip-scan from 50 to 18, based on experiments that show that 18 is the approximate break-even point for a variety of schemas. (check-in: 83c0bb99 user: drh tags: trunk)
04:00
Avoid using the GetVersionEx functions if they are considered deprecated. (check-in: afdca299 user: mistachkin tags: trunk)
03:01
Avoid using the GetVersionEx functions if they are considered deprecated. (Closed-Leaf check-in: 0ea9e472 user: mistachkin tags: vs2013)
01:23
Add additional test cases for skip-scan. (check-in: 1ae4915d user: drh tags: trunk)
00:45
Add additional test cases and requirements evidence marks for WITHOUT ROWID. (check-in: b408d788 user: drh tags: trunk)
2013-11-26
23:27
Make sure the update hook is not invoked for WITHOUT ROWID tables, as the documentation specifies. This bug was found while adding requirements marks, so a few extraneous requirements marks are included in this check-in. (check-in: 0978bac6 user: drh tags: trunk)
22:46
Add requirements test cases for determining when an expression is true and when it is false. (check-in: 838654e5 user: drh tags: trunk)
21:18
Changing the CAST behavior of REAL values actually changed a documented requirement. So we also have to change the requirement evidence text to match. (check-in: d84aa44e user: drh tags: trunk)
18:22
Reduce the amount of code used to implement OP_SeekGe and similar. (check-in: 8b12a15a user: dan tags: trunk)
18:00
Merge in performance enhancements from trunk. (check-in: fc9ae839 user: drh tags: sessions)
16:51
Fix a possible NULL pointer deference in the wordcount test program. (check-in: 6f91dca0 user: drh tags: trunk)
16:48
Change tclsqlite3.c so that it never invokes ctype macros with signed character arguments. (check-in: c07caabf user: drh tags: trunk)
16:20
Do not try to run the atof1.test test script on ARM hardware which lacks the "long double" type. (check-in: fafca560 user: drh tags: trunk)
15:45
Change the REAL-to-INTEGER casting behavior so that if the REAL value is greater than 9223372036854775807.0 then it is cast to the latest possible integer, 9223372036854775807. This is sensible and the way most platforms work in hardware. The former behavior was that oversize REALs would be cast to the smallest possible integer, -9223372036854775808, which is the way Intel hardware works. (check-in: 6f53fc71 user: drh tags: trunk)
01:13
Fix comment. (check-in: 8364af39 user: mistachkin tags: winHdr)
01:00
Further work on Windows header file reform. (check-in: 540f5525 user: mistachkin tags: winHdr)
00:33
Merge updates from trunk. (check-in: c5ab4378 user: mistachkin tags: winHdr)
00:28
Better support for UTF-8 paths on Cygwin. (check-in: 9954327c user: mistachkin tags: trunk)
2013-11-25
23:42
Add SQLITE_CONFIG_WIN32_HEAPSIZE option to configure the maximum isolated heap size on Windows. (check-in: 914e6c9d user: mistachkin tags: trunk)
22:24
Change a while-loop into a do-loop in sqlite3VdbeRecordCompare() and add an assert() to verify that the do-loop really is appropriate. This gives about a 10% performance boost in that routine, or a 0.9% boost overall. (check-in: 011a6be4 user: drh tags: trunk)
21:49
Clarify docs for the SQLITE_CONFIG_WIN32_HEAPSIZE option. (Closed-Leaf check-in: 51e87607 user: mistachkin tags: winHeapSize)
21:41
Remove a NEVER() from a branch that is now reachable during OOM faults. (check-in: 18bdcb05 user: drh tags: trunk)
20:50
Optimizations to the sqlite3BtreeMovetoUnpacked() routine in storage engine making it about 17.8% faster, which in turn makes SQLite over 1.2% faster overall. (check-in: 032e8993 user: drh tags: trunk)
20:14
Return an SQLITE_CORRUPT error if the content size field of a table record extends off the end of a page. (Closed-Leaf check-in: b48c4e40 user: drh tags: btree-optimization)
17:38
Uses shifts rather than division for arithmetic on the cell indices, since those indices are always non-negative. (check-in: 5bf2a3fe user: drh tags: btree-optimization)
16:52
Optimize the skipping of the payload size field when doing a binary search for a rowid. (check-in: 55e5bfa2 user: drh tags: btree-optimization)
16:23
Arrange for sqlite3BtreeMovetoUnpacked() to always leave the cursor cell parse cache invalidated. This fixes issues with previous check-ins on this branch and also runs faster. (check-in: a7467560 user: drh tags: btree-optimization)
15:01
More optimizations to sqlite3BtreeMovetoUnpacked(). But there are failures in TH3. Committing this intermediate state to facilitate bisecting. (check-in: f80497be user: drh tags: btree-optimization)
14:10
More improvements to sqlite3BtreeMovetoUnpacked() performance. (check-in: 88680698 user: drh tags: btree-optimization)
09:37
Correct line-endings in the new header file. (check-in: 94219b9f user: mistachkin tags: winHdr)
09:36
Initial work on isolating usage of the Windows header file. (check-in: 0d42c6b8 user: mistachkin tags: winHdr)
02:38
Performance improvements in sqlite3BtreeMovetoUnpacked(). (check-in: d0fb7ace user: drh tags: btree-optimization)
2013-11-24
23:18
Better support for UTF-8 paths on Cygwin. (Closed-Leaf check-in: 484162b6 user: mistachkin tags: cygUtf8)
01:14
Add the --scratch parameter to speedtest1. Improved error messages when misconfiguring memory parameters in speedtest1. (check-in: 8f3c767a user: drh tags: trunk)
00:46
The MEMSYS5 algorithm does not have to return the block with the lowest address. Any block of the appropriate size will do. Use the first block found on the freelist for the appropriate size for a performance improvement. (check-in: 12e612e8 user: drh tags: trunk)
2013-11-23
22:45
A much simpler fix is to simply change MEMSYS5 so that it takes any free block of the appropriate size (the first on the list of free blocks) rather than searching for the one with the smallest address. This is also faster than using the min-heap algorithm. Need to research to verify that the allocator still satisfies the Robson proof, however. (Closed-Leaf check-in: 8191b512 user: drh tags: memsys5-performance)
21:30
Use a heap-based primary queue rather than a linked list to store the available free blocks of each size in MEMSYS5, since this provides faster access to the first available block. (Closed-Leaf check-in: 7d2cdfad user: drh tags: memsys5-performance)
21:29
Add newlines at the end of some error messages in speedtest1. (check-in: 6b98f0af user: drh tags: trunk)
11:45
Report errors from sqlite3_exec() and sqlite3_config() in speedtest1. Fix a bug in the main testing logic that was found by these error reports. (check-in: 659f1a98 user: drh tags: trunk)
04:32
Fix the order of parameters to SQLITE_CONFIG_PAGECACHE in the speedtest1.exe program. (check-in: dbe85ef6 user: drh tags: trunk)
04:22
Adjust MSVC makefile to avoid using forward slashes in file names. (check-in: facf6dea user: mistachkin tags: trunk)
04:16
Add the "speedtest1.exe" test program. (check-in: fb6f0c6d user: drh tags: trunk)
00:27
Add experimental sqlite3_config option to control the native Win32 heap size. (check-in: f09f11e9 user: mistachkin tags: winHeapSize)
2013-11-22
21:32
Fix harmless compiler warning. (check-in: f336c18f user: mistachkin tags: trunk)
00:49
Minor correction to the batch build tool for MSVC. (check-in: 22144c9d user: mistachkin tags: trunk)
2013-11-21
23:37
Fix a harmless clang warning in the command-line shell. (check-in: 3d47a556 user: drh tags: trunk)
22:02
Slight change to the --timer output on wordcount for better display on windows: Avoid showing the full pathname of the executable. (check-in: b9e047b9 user: drh tags: trunk)
21:59
Changes some offset and amount parameters from "int" to "u32" to avoid harmless signed/unsigned comparison warnings. (check-in: 4e8c5d07 user: drh tags: trunk)
21:40
Modify wordcount so that timer information appears on standard error instead of standard output. Rename the run-wordcount.bash script to run-wordcount.sh and simplify it so that it stands a better chance of running on non-GNU systems. (check-in: 586c11ed user: drh tags: trunk)
21:23
Do not reuse factored constants that might have had their encodings changed. (check-in: 487f2036 user: drh tags: trunk)
20:48
Fix the code generator to honor turning off constant expression factoring. (check-in: 88262266 user: drh tags: trunk)
19:27
Add the --timer option to the wordcount test program. (check-in: a89fdf87 user: drh tags: trunk)
19:05
Remove a test from sqlite3VdbeMemFromBtree() which was unnecessary, and after the recent OP_Column refactoring, unreachable. (check-in: 23667f3b user: drh tags: trunk)
17:24
Make sure the OP_Next and OP_NextIfOpen opcodes are numbered close together for efficiency in switch() statements. OP_Prev and OP_PrevIfOpen too. (check-in: d4ccf0f5 user: drh tags: trunk)
16:08
When one or more arguments to a function are constants, try to factor out just those arguments into initialization code. (check-in: 50d350ab user: drh tags: trunk)
14:44
Remove the obsolete TK_CONST_FUNC token type. (check-in: 9b4217f0 user: drh tags: trunk)
14:33
Add the ability to factor constant functions out of inner loops. But do not factor out non-constant functions, like random(). (check-in: 1b0f779e user: drh tags: trunk)
04:18
Another improvement to OP_Function and an improvement to OP_Move. (check-in: 70b056fb user: drh tags: trunk)
03:43
A simple change to the OP_Function opcode improves overall performance by about 0.5%. (check-in: b890eefd user: drh tags: trunk)
03:12
Performance optimization to the OP_Next and OP_Prev opcodes. (check-in: ecaac28a user: drh tags: trunk)
01:33
Refactor the OP_Column opcode to make it clearer and easier to maintain. Overall, performance tests show about a 1% speed increase with this change. (check-in: 972881c6 user: drh tags: trunk)
01:04
Reduce the size of VdbeCursor again, this time without a performance hit. (Closed-Leaf check-in: 93393993 user: drh tags: OP_Column-refactor)
00:10
Unpack some fields, adding some space back to the VdbeCursor object, in order to help the code to run a little faster. (check-in: f8d5efcd user: drh tags: OP_Column-refactor)
2013-11-20
21:51
Reduce the size of the VdbeCursor object from 144 to 120 bytes. (check-in: 5f9d5068 user: drh tags: OP_Column-refactor)
20:58
Improved comments on the OP_Column changes. Optimize out loading of overflow pages for content with zero length. Add test cases for the latter. (check-in: 0e05679d user: drh tags: OP_Column-refactor)
19:28
Further performance tweaks to OP_Column. (check-in: 0e3f5df6 user: drh tags: OP_Column-refactor)
17:25
Refactoring the OP_Column opcode for improved performance and maintainability. (check-in: 7c914e39 user: drh tags: OP_Column-refactor)
02:53
Simplifications to the VdbeCursor object. (check-in: 5562cd34 user: drh tags: trunk)
00:59
Performance improvement for the OP_MustBeInt opcode in the VDBE. (check-in: 96a65388 user: drh tags: trunk)
2013-11-19
18:17
Fix a harmless MSVC compiler warning. (check-in: 6cc023bb user: drh tags: trunk)
13:55
Minor performance improvement to sqlite3SerialTypeGet(). (check-in: 17e8524f user: drh tags: trunk)
12:33
Change Noop-comments in where.c into Module-comments, so that they are omitting without SQLITE_ENABLE_MODULE_COMMENTS. (check-in: 3e577f40 user: drh tags: trunk)
02:34
Avoid seeking on the main data table during the first loop of an UPDATE if an index is sufficient to check the WHERE clause. (check-in: 57158d9d user: drh tags: trunk)
00:31
Fix an requirement mark in a test script so that it matches the typo-corrected requirement. No changes to code. (check-in: 072412d5 user: drh tags: trunk)
2013-11-18
19:32
Add comments identifing where the skip-scan option is decided in the query planner, to aid in tuning that decision. No changes to code. (check-in: e9df04ce user: drh tags: trunk)
18:48
Fix documentation typos. No changes to code. (check-in: 7caeb09c user: drh tags: trunk)
11:20
Fix harmless compiler warnings from clang scan-build. (check-in: 8d002740 user: drh tags: trunk)
08:41
Fix a problem with the shell tool EXPLAIN indentation code and VDBE sub-programs. (check-in: 9c8d6856 user: dan tags: trunk)
03:11
Enable the ONEPASS optimization for DELETE, for both rowid and WITHOUT ROWID tables. (check-in: 44a07afd user: drh tags: trunk)
2013-11-17
02:42
Make sure one-pass DELETE for WITHOUT ROWID tables correctly positions the PRIMARY KEY cursor. Make the same fix for UPDATE. (Closed-Leaf check-in: 6bd5750b user: drh tags: optimize-delete)
2013-11-16
23:16
Fix a couple of minor problems with the new delete logic. (check-in: a11243f8 user: drh tags: optimize-delete)
23:03
Fix an OOM-recovery problem in the DELETE code generator. (check-in: dc7be158 user: drh tags: optimize-delete)
22:48
Combine the rowid and WITHOUT ROWID paths for DELETE into a single path. (check-in: c4734b88 user: drh tags: optimize-delete)
20:45
The one-pass optimization is now working for DELETE on WITHOUT ROWID tables. (check-in: e4d220a3 user: drh tags: optimize-delete)
20:13
Enhance the DELETE logic so that it can make use of WHERE_ONEPASS_DESIRED for rowid tables. (check-in: 8f479a72 user: drh tags: optimize-delete)
15:35
Fully constraint the ORDER BY on the top-10 line of the --summary output from the wordcount test program. Add the run-wordcount.bash script for running wordcount in various configurations. (check-in: 7edf39eb user: drh tags: trunk)
14:03
Avoid unnecessary OP_IfNull checks when doing a range query where there is a constraint on the lower bound of the range. (check-in: de08a7e7 user: drh tags: trunk)
13:55
Simplification and performance improvement to the logic that factors constant expressions ouf of inner loops. (check-in: ee9353fd user: drh tags: trunk)
12:56
Fix testcase misc7-16 so that it works with the new UNIQUE constraint error message format. (check-in: c7f2ed9f user: drh tags: trunk)
2013-11-15
20:06
Add ALWAYS and NEVER macros to currently unreachable but important branches in sqlite3ExprCompare(). (Closed-Leaf check-in: cee835fe user: drh tags: expr-codegen-enhancement)